I went about glue 40% water 60% but you need to just find the ratio by trial and error.
I've seen the plasticky-ness on some other fake rock structures so I tried to use just enough sealant to really close it up and I don't think mine has that look. It's not too slippery either, some people have complained about the rocks being to slippery for their beardie. The last coat dried for about 13 hours before I put it in and it was probably another 12 before he poo'd on it.